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J/ApJ/660/1151      Morphology of galaxies in 10 EDisCS clusters  (Desai+, 2007)

The morphological content of 10 EDisCS clusters at 0.5 < z < 0.8. Desai V., Dalcanton J.J., Aragon-Salamanca A., Jablonka P., Poggianti B., Gogarten S.M., Simard L., Milvang-Jensen B., Rudnick G., Zaritsky D., Clowe D., Halliday C., Pello R., Saglia R., White S. <Astrophys. J., 660, 1151-1164 (2007)> =2007ApJ...660.1151D
ADC_Keywords: Clusters, galaxy ; Morphology Keywords: galaxies: clusters: general - galaxies: evolution - galaxies: formation Abstract: We describe Hubble Space Telescope (HST) imaging of 10 of the 20 ESO Distant Cluster Survey (EDisCS) fields. Each ∼40arcmin2 field was imaged in the F814W filter with the Advanced Camera for Surveys Wide Field Camera. Based on these data, we present visual morphological classifications for the ∼920 sources per field that are brighter than Iauto=23mag. We use these classifications to quantify the morphological content of 10 intermediate-redshift (0.5<z<0.8) galaxy clusters within the HST survey region. The EDisCS results, combined with previously published data from seven higher redshift clusters, show no statistically significant evidence for evolution in the mean fractions of elliptical, S0, and late-type (Sp+Irr) galaxies in clusters over the redshift range 0.5<z<1.2. Description: The 10 clusters included in this study are a subset of the ESO Distant Cluster Survey, an extensive program to obtain spectroscopy and multiwavelength photometry for 20 galaxy clusters at 0.4<z<1. Details of the goals and data sets associated with this survey are documented by White et al. (2005, Cat. J/A+A/444/365) File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 66 10 The EDisCS (ESO Distant Cluster Survey) HST sample table2.dat 293 9243 The Morphological Catalogs
See also: J/A+A/444/365 : ESO Distant Cluster Survey, EDisCS (White+, 2005) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Seq Sequential number 4- 14 A11 --- Cluster Name of EDisCS Cluster Field (clHHMM+DDMM, ClG JHHMM+DDMM in Simbad) 15 A1 --- m_Cluster [b] Multiplicity index on Cluster 17- 18 I2 h RAh Right ascension (J2000) 20- 21 I2 min RAm Right ascension (J2000) 23- 26 F4.1 s RAs Right ascension (J2000) 28 A1 --- DE- Declination sign (J2000) 29- 30 I2 deg DEd Declination (J2000) 32- 33 I2 arcmin DEm Declination (J2000) 35- 38 F4.1 arcsec DEs Declination (J2000) 40- 43 F4.2 --- z Redshift 45- 48 I4 km/s sigma Velocity dispersion 50- 52 I3 km/s E_sigma Error on sigma (upper limit) 54- 56 I3 km/s e_sigma Error on sigma (lower limit) 58- 61 F4.2 Mpc R200,1 Virial radius, R200, computed with eq. (1) in Poggianti et al. (2006ApJ...642..188P) using the classic cosmology 63- 66 F4.2 Mpc R200,2 Virial radius, R200, computed with eq. (1) in Poggianti et al. (2006ApJ...642..188P) using the WMAP cosmology
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Cluster Name of EDisCS Cluster Field (clHHMM+DDMM, ClG JHHMM+DDMM in Simbad) 13- 17 A5 --- --- [EDCSN] 18- 33 A16 --- EDCSN The EDisCS identification, JHHMMSSs+DDMMSSs 35- 41 F7.3 deg RAdeg Right Ascension in decimal degrees (J2000) 43- 50 F8.4 deg DEdeg Declination in decimal degrees (J2000) 52- 56 F5.2 mag Imag Total I band magnitude (1) 58- 61 I4 --- Type Object type (2) 63- 65 I3 --- Disk The SO disk flag (3) 67- 69 I3 --- Bar Bar flag (4) 71- 73 I3 --- E-on The Edge-on flag (5) 75- 77 I3 --- Small Small galaxy flag (6) 79- 81 I3 --- LSB Low-surface-brightness flag (7) 83- 85 I3 --- Defect Defective galaxy image flag (8) 87- 89 I3 --- Dust Dust in galaxy flag (9) 91- 93 I3 --- Disturb Disturbed galaxy flag (10) 95-293 A199 --- Com Additional classifier comment(s) (11)
Note (1): SExtractor MAG_AUTO parameter measured from ground-based I-band images Note (2): Object type as follows: -7 = star -6 = non-stellar but too compact to see structure -5 = E -2 = S0 1 = Sa 2 = Sab 3 = Sb 4 = Sbc 5 = Sc 6 = Scd 7 = Sd 8 = Sdm 9 = Sm 10 = Im 11 = Irr 88 = Not explained (for 2 galaxies) 111 = no HST data corresponding to ground-based object 66 = unclassifiable 999 = Not explained (for 10 galaxies) 1011 = Not explained (for 1 galaxy) Note (3): SO disk flag as follows: 1 = A classifier noted that the Bulge/Disk ratio is small but the disk is featureless 0 = A classifier did not note that the Bulge/Disk ratio is small but the disk is featureless 111 = No HST data corresponding to ground-based object Note (4): Bar flag as follows: 1 = A classifier noted the presence of a bar 0 = criterion is not met 111 = No HST data corresponding to ground-based object Note (5): Edge-on flag as follows: 1 = A classifier noted that this galaxy is edge-on 0 = criterion is not met 111 = No HST data corresponding to ground-based object Note (6): Small galaxy flag as follows: 1 = A classifier noted that this galaxy is small 0 = criterion is not met 111 = No HST data corresponding to ground-based object Note (7): Low-surface-brightness flag as follows: 1 = A classifier noted that this galaxy is low-surface-brightness 0 = criterion is not met 111 = No HST data corresponding to ground-based object Note (8): Defective galaxy image flag as follows: 1 = A classifier noted that the image of this galaxy was defective, due for example to cosmic rays or incomplete coverage 0 = criterion is not met 111 = No HST data corresponding to ground-based object Note (9): Dust in galaxy flag as follows: 1 = A classifier noted the presence of dust in the galaxy 0 = criterion is not met 111 = No HST data corresponding to ground-based object Note (10): Disturbed galaxy flag as follows: 1 = A classifier noted that this galaxy is disturbed 0 = criterion is not met 111 = No HST data corresponding to ground-based object Note (11): 111 for No HST data corresponding to ground-based object
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 08-Mar-2009
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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